*Area flood warning for D.C. and surrounding Maryland/Virginia suburbs until 7:30 a.m. Sunday*

10 p.m. update: Moderate to heavy rain continues to fall throughout the region and there are numerous reports of creeks and streams overflowing their banks. Some road closures and even a high water rescue have been reported. The National Weather Service warned of “dangerous nighttime flooding," predicting another inch of rain into the early morning hours Sunday. If possible, avoid traveling routes near creeks and streams overnight and never cross a flooded road in your vehicle.

Through 10 p.m., 2.14 inches had fallen in Washington, making it the 8th wettest December day on record.

Areas under flood warnings and watches Saturday evening. (PivotalWeather.com)

Original post

Well, we did it. Early Saturday morning, 2018 officially became the wettest year on record in Washington. And to celebrate this feat, Mother Nature decided to throw us an all-weekend rain party!

Across the region, more than an inch of rain has already fallen in the past 24 hours, with some spots in Northern Virginia approaching the 2-inch mark. All of that liquid has saturated the ground, and with more rain expected later tonight, some local waterways will be pushed into minor flood stages over the next 12 to 24 hours.

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Through tonight: Steady rainfall will continue to filter back into the region following a brief midafternoon lull. Some of the rain will become heavy at times and may even produce a few rumbles of thunder. Anywhere from one to 1.5 inches of additional rainfall is expected through Sunday morning, with the heavier totals probably falling north of the Potomac.

Some minor flooding is expected in area rivers and streams, along with urban flooding overnight. Rainfall intensity should begin to lighten after midnight, with overnight lows in the low 40s. Areas of patchy fog will probably develop onshore, with easterly winds at 10 mph.

Pedestrians make their way along H Street NW on Friday evening in Washington. More rain is expected tonight. (Robert Miller/The Washington Post)

View the current weather at The Washington Post.

Tomorrow (Sunday): Areas of patchy fog will reduce visibility in some spots during the morning. With a persistent easterly flow (10 to 15 mph) locked in place, showers and pockets of drizzle are possible at all times Sunday. When it’s not raining, it will be cool and overcast, with afternoon temperatures in the low to mid-40s. As winds eventually switch to the northwest by Sunday evening, we will finally start to dry out. Partly cloudy skies will prevail Sunday night, with lows in the mid-30s.

See Ian Livingston’s forecast through next week. And if you haven’t already, join us on Facebook, and follow us on Twitter and Instagram. For related traffic news, check out Gridlock.

Daily rainfall record: On the day Washington clinched its wettest year, it sealed the deal with a rainfall record for the date. Through 10 p.m., Washington had tallied 2.14 inches of rain, breaking the previous Dec. 15 mark of 1.38 inches set in 1901.

One more record to chase: Yes, this morning, the District officially broke the record for most rainfall in a calendar year. But the actual record for a 365-day period is 70.60 inches, ending on July 26 in 1886.

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